A Dynamic Model of the Magnetic Head Slider With Contact and Off-Track Motion due to a Thermally Actuated Protrusion or a Moving Bump Involving Intermolecular Forces
Abstract:A computationally efficient five-degree-of-freedom dynamic model was developed to simulate the motion of a magnetic head slider under the conditions of moving-bump collision and of contact due to an expanding protrusion on the slider for thermal flying-height control, with consideration of intermolecular forces. Compared to results obtained without intermolecular forces for a bump on the rotating disk, the intermolecular forces cause a significantly greater normal contact force, a larger roll angle and a large… Show more
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